# NSCA (Nagios Service Check Acceptor)

**Canonical:** https://apis.io/apis/nagios/nsca/  
**Provider:** Nagios — https://apis.io/providers/nagios/  
**Base URL:** tcp://{nsca-host}:5667  
**Documentation:** https://github.com/NagiosEnterprises/nsca

NSCA (Nagios Service Check Acceptor) is one of 13 APIs that [Nagios](https://apis.io/providers/nagios/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Monitoring, Passive Check, Binary Protocol, and NSCA.

Encrypted binary TCP daemon (default port 5667) that accepts passive service/host check results from remote machines. Not REST — clients send tab-delimited records over a shared-secret-encrypted socket. Use NRDP for an HTTP/JSON equivalent.

## Machine-readable artifacts (2)

- **GitHub** — https://github.com/NagiosEnterprises/nsca
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/nagios/refs/heads/main/apis.yml

## Other Nagios APIs (12)

- [NRPE (Nagios Remote Plugin Executor)](https://apis.io/apis/nagios/nrpe/)
- [Nagios Config API](https://apis.io/apis/nagios/nagios-config-api/)
- [Nagios CPU API](https://apis.io/apis/nagios/nagios-cpu-api/)
- [Nagios Disk API](https://apis.io/apis/nagios/nagios-disk-api/)
- [Nagios Interface API](https://apis.io/apis/nagios/nagios-interface-api/)
- [Nagios Memory API](https://apis.io/apis/nagios/nagios-memory-api/)
- [Nagios Objects API](https://apis.io/apis/nagios/nagios-objects-api/)
- [Nagios Plugins API](https://apis.io/apis/nagios/nagios-plugins-api/)
- [Nagios Processes API](https://apis.io/apis/nagios/nagios-processes-api/)
- [Nagios Services API](https://apis.io/apis/nagios/nagios-services-api/)
- [Nagios Submission API](https://apis.io/apis/nagios/nagios-submission-api/)
- [Nagios System API](https://apis.io/apis/nagios/nagios-system-api/)

## Tags

Monitoring, Passive Check, Binary Protocol, NSCA

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/nagios/nsca/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/nagios/.